Steel bar cutting device for building construction
By introducing an adjustable clamping mechanism into the rebar cutting device and using a servo motor and hydraulic cylinder to adjust the spacing of the pressure rollers, the problem of unstable rebar cutting was solved, achieving stable and high-precision cutting of rebars of different sizes and improving safety.
Patent Information
- Application Number
- CN202422885741.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing steel bar cutting devices used in construction are unstable when cutting steel bars, cannot adapt to steel bars of different diameters, and have uneven cutting edges, posing safety hazards.
A rebar cutting device including an adjustable clamping mechanism was designed. The first and second pressure rollers are driven by a servo motor, and the spacing is adjusted by a hydraulic cylinder and a tension spring. With the help of belt pulley transmission, stable clamping and cutting of rebars of different sizes can be achieved.
It enables stable cutting of steel bars of different sizes, improves cutting accuracy and safety, and reduces the occurrence of safety accidents.
Smart Images

Figure CN223833324U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel bar cutting technology, specifically a steel bar cutting device for building construction. Background Technology
[0002] A rebar cutting device for construction is a mechanical device specifically designed for efficiently cutting rebar on construction sites. The design of the rebar cutting device aims to improve work efficiency, ensure cutting accuracy, and provide greater safety during operation, reducing the potential risks associated with manual cutting.
[0003] According to the search, patent document with publication number CN221388691U discloses a steel bar cutting device for building construction, including a base plate, two fixing plates on one side of the top of the base plate, a fixing box on the other side of the top of the base plate, a batch cutting assembly between the two fixing plates and inside the fixing box, and auxiliary components on one side of the top of the fixing box and both sides of the base plate; the batch cutting assembly includes two steel bar transport rollers.
[0004] The aforementioned comparative documents also have the following shortcomings: When cutting reinforcing bars, the stability of the reinforcing bars during the cutting process needs to be guaranteed; otherwise, safety accidents are very likely to occur during the cutting process. At the same time, the cutting edge cannot be guaranteed to be flush and burr-free. The distance between the two reinforcing bar transport rollers in the aforementioned comparative documents cannot be adjusted, so it is impossible to cut reinforcing bars of various diameters and it is also impossible to guarantee the stability of the reinforcing bars during the cutting process. Utility Model Content
[0005] To overcome the above-mentioned defects, this utility model provides a steel bar cutting device for building construction, which solves the problems in the prior art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel bar cutting device for building construction, comprising:
[0007] The main body shell has openings at both ends. A servo motor is installed on one side of the main body shell. A positioning seat is fixedly connected to the bottom inside the main body shell. A first pressure roller is rotatably connected inside the positioning seat. An adjustable clamping mechanism is installed on the positioning seat.
[0008] A cutting device, wherein the cutting device is disposed at the top inside the main body shell;
[0009] A mating plate is fixedly connected to the bottom of the main body shell. The mating plate is in contact with one side of the positioning seat, and a cutting edge is provided on the mating plate.
[0010] As a further embodiment of this utility model: the adjustable clamping mechanism includes a through groove formed on the positioning seat, and a second pressure roller is movably connected in the through groove. Both ends of the first pressure roller and the second pressure roller are coaxially and fixedly connected to a transmission pulley.
[0011] As a further embodiment of this utility model: both sides of the positioning seat are fixedly connected to a fixing plate, a hydraulic cylinder is fixedly connected to the fixing plate, a sliding sleeve is fixedly connected to the output end of the hydraulic cylinder, and the sliding sleeve is sleeved on the second pressure roller shaft on the corresponding side.
[0012] As a further embodiment of this utility model: the output end of the servo motor passes through the main body shell and is coaxially and fixedly connected to the transmission belt pulley on the first pressure roller on the corresponding side.
[0013] As a further embodiment of this utility model: two connecting plates are fixedly connected to the positioning seat, a tension spring and a telescopic rod are fixedly connected to the connecting plates, the tension spring is sleeved on the outside of the telescopic rod, and a rotating seat is fixedly connected to the end of the tension spring and the telescopic rod away from the connecting plates, and a mating pulley is rotatably connected to the rotating seat.
[0014] As a further embodiment of this utility model: a through groove is provided on the connecting plate, the shaft of the mating pulley is movably connected in the through groove, and a belt is sleeved between the mating pulley and two transmission pulleys on the corresponding side.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This invention, by setting an adjustable clamping mechanism, allows for adjustment of the distance between the first and second pressure rollers, thereby adapting to the processing requirements of steel bars of different sizes. At the same time, during cutting, the first and second pressure rollers can basically fit against the steel bar, ensuring the stability of the steel bar during cutting and thus ensuring cutting safety. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a three-dimensional internal structure diagram of the present invention;
[0019] Figure 3 This is a three-dimensional structural diagram of the rotating seat part of this utility model.
[0020] In the diagram: 1 Main body shell, 2 Servo motor, 3 Positioning seat, 4 First pressure roller, 5 Cutting equipment, 6 Matching plate, 7 Second pressure roller, 8 Transmission pulley, 9 Fixed plate, 10 Hydraulic cylinder, 11 Tension spring, 12 Telescopic rod, 13 Rotating seat, 14 Matching pulley. Detailed Implementation
[0021] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0022] like Figures 1-3 As shown, this utility model provides a technical solution:
[0023] The main body shell 1 has openings at both ends. A servo motor 2 is provided on one side of the main body shell 1. A positioning seat 3 is fixedly connected to the bottom inside the main body shell 1. A first pressure roller 4 is rotatably connected inside the positioning seat 3. An adjustable clamping mechanism is provided on the positioning seat 3.
[0024] Cutting device 5 is installed inside the top of the main body shell 1. Cutting device 5 can cut steel bars.
[0025] The mating plate 6 is fixedly connected to the bottom of the main body shell 1. The mating plate 6 is in contact with one side of the positioning seat 3. The mating plate 6 has a cutting edge, which is set to cooperate with the cutting tool in the cutting device 5.
[0026] The adjustable clamping mechanism includes a through groove on the positioning seat 3, in which a second pressure roller 7 is movably connected. Both ends of the first pressure roller 4 and the second pressure roller 7 are coaxially fixedly connected to a transmission pulley 8. Fixed plates 9 are fixedly connected to both sides of the positioning seat 3. A hydraulic cylinder 10 is fixedly connected to the fixed plate 9. A sliding sleeve is fixedly connected to the output end of the hydraulic cylinder 10. The sliding sleeve is fitted onto the shaft of the second pressure roller 7 on the corresponding side. The output end of the servo motor 2 passes through the main body shell 1 and is coaxially fixedly connected to the transmission pulley 8 on the first pressure roller 4 on the corresponding side. Two connecting plates are fixedly connected to the positioning seat 3. A tension spring 11 and a telescopic rod 12 are fixedly connected to the connecting plates. The tension spring 11 is fitted onto the outside of the telescopic rod 12. A rotating seat 13 is fixedly connected to the end of the tension spring 11 and the telescopic rod 12 away from the connecting plates. A mating pulley 14 is rotatably connected to the rotating seat 13. A through groove is opened on the connecting plate. The shaft of the mating pulley 14 is movably connected into the through groove. A belt is fitted between the mating pulley 14 and the two transmission pulleys 8 on the corresponding side.
[0027] The working principle of this utility model is as follows:
[0028] When cutting steel bars, the steel bars to be cut can be inserted into the grooves on the first pressure roller 4, and the cutting distance can be controlled. Then, the hydraulic cylinder 10 is extended, and the second pressure roller 7 moves closer to the first pressure roller 4 to stably clamp the steel bars. It should be noted that the grooves between the first pressure rollers 4 are smooth surfaces, while the grooves on the second pressure roller 7 are rough surfaces. At this time, the cutting device 5 can be started to cut the steel bars. After the first cut is completed, if a second cut is required, the servo motor 2 can be started. It should be noted that when the second pressure roller 7 moves closer to the first pressure roller 4, the cooperating pulley 14 will move towards the drive pulley 8 under the action of the tension spring 11. The telescopic rod 12 can ensure the basic deformation direction of the tension spring 11. It can be clearly understood that due to the setting of the cooperating pulley 14, the belt is always in a taut state. After the servo motor 2 is started, the drive pulley 8, which is coaxially fixed to its output end, rotates. Through the belt connection, the other drive pulley 8 and the cooperating pulley 14 will rotate synchronously, and the first pressure roller 4 and the second pressure roller 7 can be driven.
[0029] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A steel bar cutting device for building construction, characterized in that, include: The main body shell (1) has openings at both ends. A servo motor (2) is provided on one side of the main body shell (1). A positioning seat (3) is fixedly connected to the bottom of the main body shell (1). A first pressure roller (4) is rotatably connected inside the positioning seat (3). An adjustable clamping mechanism is provided on the positioning seat (3). A cutting device (5) is disposed at the top inside the main body shell (1); The mating plate (6) is fixedly connected to the bottom of the main body shell (1). The mating plate (6) is in contact with one side of the positioning seat (3). The mating plate (6) has a cutting edge. The adjustable clamping mechanism includes a through groove on the positioning seat (3), and a second pressure roller (7) is movably connected in the through groove. Both ends of the first pressure roller (4) and the second pressure roller (7) are coaxially fixedly connected to a transmission pulley (8).
2. The steel bar cutting device for building construction according to claim 1, characterized in that: The positioning seat (3) is fixedly connected to both sides of a fixing plate (9), and a hydraulic cylinder (10) is fixedly connected to the fixing plate (9). A sliding sleeve is fixedly connected to the output end of the hydraulic cylinder (10), and the sliding sleeve is sleeved on the shaft of the second pressure roller (7) on the corresponding side.
3. A steel bar cutting device for building construction according to claim 2, characterized in that: The output end of the servo motor (2) passes through the main body shell (1) and is coaxially fixedly connected to the transmission pulley (8) on the first pressure roller (4) on the corresponding side.
4. A steel bar cutting device for building construction according to claim 3, characterized in that: Two connecting plates are fixedly connected to the positioning seat (3). A tension spring (11) and a telescopic rod (12) are fixedly connected to the connecting plates. The tension spring (11) is sleeved on the outside of the telescopic rod (12). A rotating seat (13) is fixedly connected to the end of the tension spring (11) and the telescopic rod (12) away from the connecting plate. A mating pulley (14) is rotatably connected to the rotating seat (13).
5. A steel bar cutting device for building construction according to claim 4, characterized in that: The connecting plate has a through groove, and the shaft of the mating pulley (14) is movably connected in the through groove. A belt is fitted between the mating pulley (14) and the two transmission pulleys (8) on the corresponding side.
Citation Information
Patent Citations
Steel bar cutting device for building construction
CN221388691U